Asus KN97 User Manual page 32

14. Chassis Open Alram Lead (CHASSIS)
This lead is for an open chassis monitor. A high level signal to the CHASSIS
lead will indicate to the system that the chassis has been opened. The +3V lead
comes from the onboard button cell battery to retain its function even if the
power cord has been unplugged from the AT power supply. Be sure that the load
on the +5V lead is minimal to prevent constant battery replacements.
Chassis Open Alarm Lead
15. USB, Infrared (IrDA), P/2 Mouse Module Connector (USBIRMOUSE)
If you want to use USB, PS/2 mouse, or infrared devices, you need to purchase
an external connector set. The external connector set connects to the 18-pin
block and mounts to an open slot on your computer's chassis. The system will
direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expansion
cards can use IRQ12. See PS/2 Mouse Control in BIOS Features Setup and
USB Function in PnP and PCI Setup of the BIOS SOFTWARE.
USB, PS/2 Mouse, Infrared Connector
32
III. INSTALLATION
+3 Volts (from battery)
Chassis Signal
GND
10 1
9
18
10: USB +5Volt
11: USB Port 1 -
12: USB Port 1 +
13: Ground
14: (no connection)
15: PS/2 Mouse Data
16: Ground
17: IRRX
18: IRTX
ASUS KN97 User's Manual
USB, PS/2 Mouse,
Infrared Bracket
1: USB +5Volt
2: USB Port 0 -
3: USB Port 0 +
4: Ground
5: USB +5V
6: PS/2 Mouse Clock
7: Ground
8: FIRRX
9: IR Power +5V
Actual cable length
Infrared
PS/2 Mouse
USB 0
USB 1
3in or 7.6cm